AlpacaHack Logo

@ret1n4

Sign InSign Up
ret1n4

CTF HISTORY

No CTFs participated.

WRITEUPS

WRITEUPCREATED AT
Writeup for AlpacaHack Round 5 (Crypto) (all solved)
en
NNNN

4 weeks ago

Writeup for AlpacaHack Round 8 (Rev) (all solved)
en
vcipher

4 weeks ago

Writeup for AlpacaHack Round 4 (Rev) (all solved)
en
Everything Silver

last month

SOLVED CHALLENGES

CHALLENGESOLVES

SOLVED AT

Animal Viewer
Web
Daily AlpacaHack

134 solves

5 days ago

The World
Misc
Daily AlpacaHack

134 solves

5 days ago

Magic Engine
Web
Daily AlpacaHack

172 solves

5 days ago

No JS
Web
Daily AlpacaHack

115 solves

5 days ago

misdirection
Rev
Daily AlpacaHack

117 solves

5 days ago

read-a-binary
Rev
Daily AlpacaHack

161 solves

5 days ago

RRe_Time_Limiter
Crypto
Daily AlpacaHack

136 solves

5 days ago

Substance
Crypto
Daily AlpacaHack

170 solves

5 days ago

shellcode-101
Pwn
Daily AlpacaHack

116 solves

5 days ago

HellCouple
Crypto
Daily AlpacaHack B-SIDE

61 solves

5 days ago

Linear Coffee Generator
Crypto
Daily AlpacaHack

103 solves

5 days ago

Bashrunner
Misc
Daily AlpacaHack

112 solves

2 weeks ago

Stateless Auth
Web
Daily AlpacaHack

146 solves

2 weeks ago

Paca Paca Authenticator
Crypto
Daily AlpacaHack

114 solves

2 weeks ago

git gc
Misc
Daily AlpacaHack

138 solves

2 weeks ago

ToyPQC
Crypto
Daily AlpacaHack

99 solves

2 weeks ago

dockerstack
Misc
Daily AlpacaHack

161 solves

3 weeks ago

Jackpot
Web
AlpacaHack Round 11 (Web)

157 solves

3 weeks ago

only-read
Pwn
RTACTF 2023 Spring

22 solves

3 weeks ago

read-write
Pwn
RTACTF 2023 Spring

41 solves

3 weeks ago

Hat Trick
Crypto
AlpacaHack Round 3 (Crypto)

64 solves

3 weeks ago

Reused-AES
Crypto
RTACTF 2023 Spring

32 solves

3 weeks ago

write
Pwn
RTACTF 2023 Spring

85 solves

3 weeks ago

1R-AES
Crypto
RTACTF 2023 Spring

17 solves

3 weeks ago

before-write
Pwn
RTACTF 2023 Spring

158 solves

3 weeks ago

Collision-DES
Crypto
RTACTF 2023 Spring

37 solves

3 weeks ago

XOR-CBC
Crypto
RTACTF 2023 Spring

76 solves

3 weeks ago

Short Writer
Pwn
Daily AlpacaHack

112 solves

3 weeks ago

system-v
Rev
Daily AlpacaHack

112 solves

3 weeks ago

ChaChaCha
Crypto
Daily AlpacaHack

146 solves

3 weeks ago

dice roll
Web
Daily AlpacaHack

172 solves

3 weeks ago

Base Length
Misc
Daily AlpacaHack

138 solves

3 weeks ago

miniblog++
Web
zer0pts CTF 2022

10 solves

4 weeks ago

zundamon
RevForensics
CakeCTF 2022

7 solves

4 weeks ago

kiwi
Rev
CakeCTF 2022

9 solves

4 weeks ago

EDDH
Crypto
zer0pts CTF 2022

6 solves

4 weeks ago

luau
Rev
CakeCTF 2022

33 solves

4 weeks ago

dreamland
Rev
zer0pts CTF 2022

3 solves

4 weeks ago

brand new crypto
Crypto
CakeCTF 2022

23 solves

4 weeks ago

CakeGEAR
Web
CakeCTF 2022

77 solves

4 weeks ago

Modern Rome
Pwn
zer0pts CTF 2022

24 solves

4 weeks ago

frozen cake
Crypto
CakeCTF 2022

70 solves

4 weeks ago

GitFile Explorer
Web
zer0pts CTF 2022

46 solves

4 weeks ago

service
Rev
zer0pts CTF 2022

8 solves

4 weeks ago

Anti-Fermat
Crypto
zer0pts CTF 2022

29 solves

4 weeks ago

qrackv
Rev
SECCON CTF 13 Quals

1 solve

4 weeks ago

Treasure Hunt
Web
AlpacaHack Round 7 (Web)

265 solves

4 weeks ago

Tidal wave
Crypto
SECCON CTF 13 Quals

3 solves

4 weeks ago

Alpaca Poll
Web
AlpacaHack Round 7 (Web)

128 solves

4 weeks ago

seqr
Crypto
SECCON CTF 13 Quals

1 solve

4 weeks ago

Pico Note 1
Web
AlpacaHack Round 2 (Web)

79 solves

4 weeks ago

Trillion Bank
Web
SECCON CTF 13 Quals

12 solves

4 weeks ago

Jump
Rev
SECCON CTF 13 Quals

7 solves

4 weeks ago

dual_summon
Crypto
SECCON CTF 13 Quals

8 solves

4 weeks ago

reiwa_rot13
Crypto
SECCON CTF 13 Quals

25 solves

4 weeks ago

Five Alpacas
Crypto
Daily AlpacaHack

164 solves

4 weeks ago

Jerr0-day
Crypto
AlpacaHack Round 13 (Crypto)

12 solves

4 weeks ago

Jerry's flag checker
Crypto
AlpacaHack Round 13 (Crypto)

30 solves

4 weeks ago

Broadcasting NTRU
Crypto
AlpacaHack Round 5 (Crypto)

10 solves

4 weeks ago

SchnorrLCG
Crypto
AlpacaHack Round 5 (Crypto)

22 solves

4 weeks ago

RSARSARSARSARSARSA
Crypto
AlpacaHack Round 12 (Crypto)

79 solves

4 weeks ago

echo
Pwn
AlpacaHack Round 1 (Pwn)

339 solves

4 weeks ago

Equivalent Privacy Wired
Crypto
AlpacaHack Round 9 (Crypto)

9 solves

4 weeks ago

subway
Rev
AlpacaHack Round 8 (Rev)

16 solves

4 weeks ago

CaaS
Web
AlpacaHack Round 2 (Web)

91 solves

4 weeks ago

Simple Login
Web
AlpacaHack Round 2 (Web)

564 solves

4 weeks ago

vcipher
Rev
AlpacaHack Round 8 (Rev)

28 solves

4 weeks ago

free-comment
Misc
Daily AlpacaHack

142 solves

4 weeks ago

RSAMPC
Crypto
AlpacaHack Round 9 (Crypto)

35 solves

4 weeks ago

Basic Buffer Overflow
Pwn
Daily AlpacaHack

157 solves

last month

crazython
Rev
Daily AlpacaHack

164 solves

last month

SwapSwap
Misc
Daily AlpacaHack

235 solves

last month

RSA2026
Crypto
Daily AlpacaHack

186 solves

last month

secret-table
Web
Daily AlpacaHack

227 solves

last month

jailiaj
Misc
Daily AlpacaHack

236 solves

last month

Square RSA
Crypto
Daily AlpacaHack

205 solves

last month

Encoding Basics
MiscCrypto
Daily AlpacaHack

263 solves

last month

super-tomato
Crypto
Daily AlpacaHack

314 solves

last month

Fushigi Crawler
Web
Daily AlpacaHack

274 solves

last month

Ruby Flag Checker
Rev
Daily AlpacaHack

245 solves

last month

I wanna be the Admin
Web
Daily AlpacaHack

214 solves

last month

Rotten Beef
Pwn
Daily AlpacaHack

178 solves

last month

108
Misc
Daily AlpacaHack

248 solves

last month

cat3
Misc
Daily AlpacaHack

197 solves

last month

Log Viewer
Web
Daily AlpacaHack

203 solves

last month

simpleoverwrite
Pwn
Daily AlpacaHack

170 solves

last month

cha-ll-enge
Rev
Daily AlpacaHack

138 solves

last month

RBG
Crypto
Daily AlpacaHack

116 solves

last month

alloc-101
Pwn
Daily AlpacaHack

195 solves

last month

Xmas Login
Web
Daily AlpacaHack

282 solves

last month

login-bonus
Pwn
Daily AlpacaHack

220 solves

last month

Useful Machine
Rev
Daily AlpacaHack

146 solves

last month

omikuji
Web
Daily AlpacaHack

215 solves

last month

power_obfus_royalty
Rev
Daily AlpacaHack

185 solves

last month

🐈
Web
Daily AlpacaHack

268 solves

last month

one-p-rsa
Crypto
Daily AlpacaHack

194 solves

last month

Fully Padded RSA
Crypto
Daily AlpacaHack

214 solves

last month

Alpaca Bank
Web
Daily AlpacaHack

284 solves

last month

Twilight
Rev
Daily AlpacaHack

203 solves

last month

RSA debug?
Crypto
Daily AlpacaHack

171 solves

last month

Sugoi Flag Checker
Rev
Daily AlpacaHack

185 solves

last month

Flag Printer 2100
Rev
Daily AlpacaHack

215 solves

last month

Safe Prime
Crypto
Daily AlpacaHack

230 solves

last month

size limit
Crypto
Daily AlpacaHack

275 solves

last month

simpleoverflow
Pwn
Daily AlpacaHack

415 solves

last month

Integer Writer
Pwn
Daily AlpacaHack

279 solves

last month

hit-and-miss
Misc
Daily AlpacaHack

307 solves

last month

Read Assembly
Rev
Daily AlpacaHack

272 solves

last month

Leaked Flag Checker
Rev
Daily AlpacaHack

468 solves

last month

Emojify
Web
Daily AlpacaHack

492 solves

last month

a fact of CTF
Crypto
Daily AlpacaHack

712 solves

last month

AlpacaHack 2100
Misc
Daily AlpacaHack

1174 solves

last month

I2C Device
Rev
AlpacaHack Round 4 (Rev)

10 solves

last month

hidden
Rev
AlpacaHack Round 8 (Rev)

71 solves

last month

A Dance of Add and Mul
Crypto
AlpacaHack Round 3 (Crypto)

74 solves

last month

masking tape
Rev
AlpacaHack Round 8 (Rev)

170 solves

last month

Everything Silver
Rev
AlpacaHack Round 4 (Rev)

26 solves

last month

Simple Flag Checker
Rev
AlpacaHack Round 4 (Rev)

125 solves

last month

pytecode
Rev
AlpacaHack Round 4 (Rev)

26 solves

last month

XorshiftStream
Crypto
AlpacaHack Round 5 (Crypto)

62 solves

last month

NNNN
Crypto
AlpacaHack Round 5 (Crypto)

47 solves

last month

Rainbow Sweet Alchemist
Crypto
AlpacaHack Round 3 (Crypto)

122 solves

last month

qrime
Crypto
AlpacaHack Round 3 (Crypto)

245 solves

last month